Battery buffered DC-UPS 

Type      : AKKUTEC 4806
Art.-No. : NBPA1630G01***


Short Description

The accumulator buffered DC supply works according to the standby parallel principle and guarantees, in connection with a lead accumulator and for a certain time interval, a safe upkeep of the DC supply in case of a mains failure. The overall output current is split up between consumer supply and lead accumulator charge.

The power supply is characterized by the following properties:

  • Switching power supply with I/U charging characteristic
  • aktiv power factor correction (PFC)
  • Micro-controller supported lead accumulator management
  • RS232 for monitoring and parameterization
  • Temperature adjustment of the charging voltage by an external sensor

Technical Data

Nominal input voltage

230 V AC (±15%)

Input voltage range for charging operation

195,5 V … 264,5 V

Nominal frequency

47 Hz … 63 Hz

Power consumption

380 VA

Self current consumption

35 mA @ 48 VDC oder 6,4W @ 230 VAC

Max. nominal input current

1,95 A

Max. inrush current

35 A / 2 ms

Max. nominal output current

6 A

Nominal output voltage (in mains operation)

48 V DC

Output voltage range (with temperature tracking)

43,2 V … 57,2 V DC ±0,4%

Charging characteristics

I/U DIN41773

Charging end voltage  (without Temp.-Sensor)

52,8 V DC ±0,4%

Deep discharge protection and load rejection

40,8 V DC ±0,4%

Max power loss ‚worst-case‘

40 W


89% @ (Ue=230 V; Ua=52,8 V DC; Ia=INenn)

Residual ripple

< 150 mV eff.

Internal device protection

2,5 A (T), 250 V

fuse DC-output circuit (external)

7,5 A (T, UL-248)

Fuse DC-Battery circuit (external)

7,5 A (T, UL-248)

Connection in parallel


Conncection in series


Max. signal contact load (Mains-OK2 )

60 V/ 0.5 A

potential-free relay-contact

Max. signal contact load (Bat-OK2)

60 V/ 0.5 A

potential-free relay-contact

Max. signal contact load (General Fault2)

60 V/ 0.5 A
potentialfreier Relais-Kontakt

Max. signal voltage range (Shut-Down)

48 V DC (6-45 V DC)
floating switching input

Accumulator type

Pb-accumulator, maintenance-free,
max. 200 Ah

Back-up time

Accumulator specific

Protective system


Operating temperature

-10 °C … 50 °C

Storage temperature

-10 °C … 50 °C

Rel. Humidity

≤95% no condensation

Max. installation altitude

2000 m above sea level

Dimensions (HxWxD)

155 mm, 95 mm, 183 mm


1.5 Kg


Snap-on mounting for DIN top hat rail

or mounting bracket for mounting plate

UL approvals No


File Format


STEP drawing 200804STP
STEP drawing with mounting flange200804STP

To download the manual and the STEP drawings please log in here